Biomass co-firing in a pressurized fluidized bed combustion (PFBC) combined cycle power plant: A techno-environmental assessment based on computational simulations

Huang, Ye; McIlveen-Wright, D; Rezvani, Sina; Wang, Yaodong; Hewitt, Neil; Williams, B. C.

doi:10.1016/j.fuproc.2006.07.003

Cited by 62 publications

(25 citation statements)

References 7 publications

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“…Jensen reported that the injection of NH 3 into the system leads to 50-60% reduction in NO x [14,15]. Coal along with biomass and other wastes such as straws, switch grass and willow chips can be used as a fuel which is further used for running a combined cycle [19]. Circulating fluidized bed combustion boiler (CFBC) is the system in which steam is produced after burning of fossil fuels in furnace which operates under special hydrodynamic condition known as Fast bed.…”

Section: Boiler (Afbc) Pressurized Fluidized Bed Combustion Boiler (mentioning

confidence: 99%

An overview of problems and solutions for components subjected to fireside of boilers

et al. 2017

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In engineering applications, there are various types of boilers such as water tube boilers, fire tube boilers, packaged boiler, fluidized bed combustion boiler, pulverized fuel boiler and waste heat boilers. These boilers are used in different industries such as power plants, paper, and chemical. The present paper reports various problems (such as agglomeration, slagging, fouling, caustic embrittlement, fatigue failure and high temperature corrosion) related to boilers and their possible solutions. Some of the controlling parameters for high temperature corrosion has also been studied viz use of inhibitors, varying temperature and pressure, sol-gel coating and thermal spray coating. Thermal spraying has emerged as a main tool for improvement in surface. Problem of corrosion, wear resistance, electrical or thermal insulation can be altered using different coating techniques and materials. Deposition of ash in biomass-fired boilers also causes severe problems of agglomeration. The problem of agglomeration can be solved using kaolin or NH 3 in the bed of boilers. Some important processes such as pulse detonation wave technology, intelligent soot blower, chemical treatment technology can be used to minimize the effects of fouling.

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Section: Boiler (Afbc) Pressurized Fluidized Bed Combustion Boiler (mentioning

confidence: 99%

An overview of problems and solutions for components subjected to fireside of boilers

et al. 2017

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“…By analyzing the literature [11][12][13]15] we can see that are, in particular, three main solutions for the thermal options: o incineration in dedicated plant: this is the solution today more widespread in the North of Europe, on the medium realization scale; o incineration with MSW: generally sludge-MSW rate is 1:5, 1:10, and the combustion are developed in conventional grate system; o incineration in cement kiln or in other energetic production plant. By analyzing the information present in literature [8] we can see that the technology today more promising for the wastewater sludge treatment is the technology of thermal treatment and in particular direct combustion in fluidizing bed at atmospheric pressure.…”

Section: State Of the Artmentioning

confidence: 99%

Wastewater sewage sludge: the thermal treatment solution

Panepinto

Genon

2014

WIT Transactions on Ecology and the Environment

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The right individuation of a more convenient solution for the final treatment and destination of sewage sludge is a very interesting problem, in account of the urgent need for acceptable solutions.In this work we examined, both from a technological and from an environmental point of view, the thermal solutions (firstly the direct combustion in incineration plant, but also gasification) for the sludge deriving from the main Italian wastewater plant (plant of the metropolitan area of Torino).In order to arrive at a solution, an initial analysis was necessary in order to define the main characteristics of the produced sludge (flow rates, composition); afterwards we analyzed the potential plant design solutions in detail in order to arrive at some prospective indications.

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“…Otherwise, co-firing basically did not affect the temperature distribution in the furnace, so co-firing had no effect on thermal-NO x . When considering the effect of higher levels of volatile hydrocarbons and the lower heat value of agro/forestry residues which can reduce NO x generation [18,19], and higher levels of alkali metals which can capture SO 2 [32], co-firing can theoretically decrease NO x and SO 2 emissions. With the co-firing ratio used here (7.2 t/h, 5.2 wt%, 3.2 cal%), and assuming 5000 h of annual operating time, it can replace 2.2 × 10 4 tons of coal and reduce CO 2 7.9 × 10 4 tons, so agro/forestry residues possess higher environmental benefits.…”

Section: Environmental Feedbackmentioning

confidence: 99%

“…Meanwhile, the HCl generated by the sulphatization of KCl can be trapped by CaO quickly [17]. High concentration of volatile hydrocarbons from agro/forestry residues can react with NO x [18,19], thus, co-firing favors low NO x and SO 2 emissions.…”

Section: Introductionmentioning

confidence: 99%

A New Agro/Forestry Residues Co-Firing Model in a Large Pulverized Coal Furnace: Technical and Economic Assessments

Niu

Tan

et al. 2013

Energies

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Based on the existing biomass co-firing technologies and the known innate drawbacks of dedicated biomass firing, including slagging, corrosion and the dependence on fuel, a new model of agro/forestry residue pellets/shreds and coal co-fired in a large Pulverized Coal (PC) furnace was proposed, and the corresponding technical and economic assessments were performed by co-firing testing in a 300 MW PC furnace and discounted cash flow technique. The developed model is more dependent on injection co-firing and combined with co-milling co-firing. Co-firing not only reduces CO 2 emission, but also does not significantly affect the fly ash use in cement industry, construction industry and agriculture. Moreover, economic assessments show that in comparison with dedicated firing in grate furnace, agro/forestry residues and coal co-firing in a large PC furnace is highly economic. Otherwise, when the co-firing ratio was below 5 wt%, the boiler co-firing efficiency was 0.05%-0.31% higher than that of dedicated PC combustion, and boiler efficiencies were about 0.2% higher with agro/forestry residues co-firing in the bottom and top burner systems than that in a middle burner system.

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Biomass co-firing in a pressurized fluidized bed combustion (PFBC) combined cycle power plant: A techno-environmental assessment based on computational simulations

Cited by 62 publications

References 7 publications

An overview of problems and solutions for components subjected to fireside of boilers

An overview of problems and solutions for components subjected to fireside of boilers

Wastewater sewage sludge: the thermal treatment solution

A New Agro/Forestry Residues Co-Firing Model in a Large Pulverized Coal Furnace: Technical and Economic Assessments

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